Westwood High School is a 6A high school with an enrollment of 2,686 students in grades 9-12. Located 17 miles north of downtown Austin, Westwood is one of five high schools in the Round Rock Independent School District. The program is currently under the leadership of Joshua Thompson and Justin Anderson. Distinguished former directors include Jerome Brillhart and Susan Williams. Teachers at the middle schools in the Westwood cluster are Ragan Whatley (Canyon Vista Middle School) and Justin Anderson (Grisham Middle School).

The Orchestra program at WHS currently has 182 members, placed in four skills-based orchestras. WHS takes three full orchestras and four string orchestras to UIL Concert and Sightreading Contest, at which all seven ensembles have consistently earned Sweepstakes awards.

The Symphony Orchestra at Westwood is a perennial finalist in the Texas Music Educator Association (TMEA) Honor Orchestra Competition, which is one of the most competitive music competitions in the country. The Westwood Symphony has been selected as the TMEA Honor Orchestra four times: in 2000, 2006, and 2010 as the TMEA Honor Full Orchestra, and 2013 as the Honor String Orchestra.

The Symphony Orchestra, under the direction of Susan Williams and Jack Green, performed at the 67th Annual Midwest International Band and Orchestra Clinic in Chicago in December of 2013. This was the first time that an Orchestra from Round Rock ISD has appeared at the Midwest Clinic.

The Westwood Orchestra students traditionally are very successful at All-Region and All-State auditions, consistently placing more than 40 students annually into the Region 26 All-Region Orchestra, and often a dozen or more students into the Texas All-State Orchestras.